ClickHouse/dbms/tests/instructions/heap-profiler.txt

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Build clickhouse without tcmalloc. cmake -D ENABLE_TCMALLOC=0
Copy clickhouse binary to your server.
scp dbms/src/Server/clickhouse server:~
ssh to your server
Stop clickhouse:
sudo service clickhouse-server stop
Run clickhouse with heap profiler from the terminal:
sudo -u clickhouse LD_PRELOAD=/usr/lib/libtcmalloc.so HEAPPROFILE=/var/log/clickhouse-server/heap.hprof ./clickhouse server --config /etc/clickhouse-server/config.xml
Profiles will appear in /var/log/clickhouse-server/